My flex 6400 is 10 months old purchased in US. Does it upgraded with a heat sink mods?
Lou
Lou
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Posted 1 year ago
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All radios shipped after April 12 2018 has the pen update. All radios before that date, customers needing the update were contacted.
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Allthrough my radio is before April 12. I have open the upper cover and the heatsink mod was done. I would like understand if the preamp mod has been done too.
Lou
Lou

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You may need to check with Flex about the preamp mod. That was optional. But because it was offered I suspect it was done as well.
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